18 January 2011 EMA/COMP/642562/2010 Committee for Orphan Medicinal Products
Public summary of opinion on orphan designation Silibinin-C-2',3-dihydrogensuccinate, disodium salt for the prevention of recurrent hepatitis C in liver transplant recipients
On 17 December 2010, orphan designation (EU/3/10/828) was granted by the European Commission to Rottapharm S.p.A., Italy, for silibinin-C-2',3-dihydrogensuccinate, disodium salt for the prevention of recurrent hepatitis C in liver transplant recipients.
What is recurrent hepatitis C in liver transplant recipients? Hepatitis C is an infection of the liver due to the hepatitis C virus. Patients with chronic (long-term) infection are at risk of liver damage and may develop serious liver diseases such as cirrhosis (liver scarring) and liver cancer, which require liver transplantation. However, because the hepatitis C virus remains in the body, the transplanted liver is also at risk of becoming infected, and therefore of developing cirrhosis and cancer. Recurrent (repeated) hepatitis C in liver transplant recipients is a debilitating and life-threatening condition because of the serious complications that can develop in the transplanted liver.
What is the estimated number of patients at risk of developing the condition? At the time of designation, the number of liver transplant recipients at risk of developing recurrent hepatitis C was estimated to be less than 1 people in 10,000 in the European Union (EU)* . This is equivalent to a total of fewer than 51,000 people, which is below the ceiling for orphan designation, which is 5 people in 10,000. This is based on the information provided by the sponsor and the knowledge of the Committee for Orphan Medicinal Products (COMP).
*
Disclaimer: For the purpose of the designation, the number of patients affected by the condition is estimated and assessed on the basis of data from the European Union (EU 27), Norway, Iceland and Liechtenstein. This represents a population of 506,500,000 (Eurostat 2010).
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© European Medicines Agency, 2011. Reproduction is authorised provided the source is acknowledged.
What methods of prevention are available? At the time of designation, there were no satisfactory treatments authorised for the prevention of recurrent hepatitis C in liver transplant recipients. Patients at risk were treated using the ‘standard of care’ for hepatitis C (pegylated interferon and ribavirin).
How is this medicine expected to work? Silibinin-C-2',3-dihydrogensuccinate, disodium salt is made from a substance extracted from milk thistle fruits. It has been used since the mid-1980s as an antidote to poisoning with the fungus Amanita phalloides. In the prevention of hepatitis C recurrence in liver transplant recipients, it is expected to work as an antiviral medicine by stopping the hepatitis C virus from multiplying. When given at the time of liver transplantation, this is expected to rid the body of the virus, therefore preventing the transplanted liver from becoming infected at a later date.
What is the stage of development of this medicine? The effects of silibinin-C-2',3-dihydrogensuccinate, disodium salt have been evaluated in experimental models. At the time of submission of the application for orphan designation, clinical trials with the medicine in liver transplant recipients at risk of developing recurrent hepatitis C were ongoing. At the time of submission, the medicine was authorised in 15 countries in the EU for the treatment of liver intoxication due to Amanita phalloides under the trade name Legalon SIL. The medicine was not authorised anywhere in the EU for the prevention of recurrent hepatitis C in liver transplant recipients nor designated as an orphan medicinal product elsewhere for this condition.
In accordance with Regulation (EC) No 141/2000 of 16 December 1999, the COMP adopted a positive opinion on 7 October 2010 recommending the granting of this designation.
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Opinions on orphan medicinal product designations are based on the following three criteria:
the seriousness of the condition;
the existence of alternative methods of diagnosis, prevention or treatment;
either the rarity of the condition (affecting not more than 5 in 10,000 people in the EU) or insufficient returns on investment.
Designated orphan medicinal products are products that are still under investigation and are considered for orphan designation on the basis of potential activity. An orphan designation is not a marketing authorisation. As a consequence, demonstration of quality, safety and efficacy is necessary before a product can be granted a marketing authorisation.
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For more information Sponsor’s contact details: Rottapharm S.p.A Galleria Unione, 5 20122 Milan Italy Postal Address: Rottapharm S.p.A. Via Valosa di Sopra, 9 20900 Monza (MB) Italy Telephone: +39 039 73 90 256 Telefax: +39 039 73 90 269 E-mail:
[email protected]
For contact details of patients’ organisations whose activities are targeted at rare diseases see:
Orphanet, a database containing information on rare diseases which includes a directory of patients’ organisations registered in Europe.
European Organisation for Rare Diseases (EURORDIS), a non-governmental alliance of patient organisations and individuals active in the field of rare diseases.
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Translations of the active ingredient and indication in all official EU languages 1 , Norwegian and Icelandic Language
Active ingredient
Indication
English
Silibinin-C-2',3-dihydrogensuccinate,
Prevention of recurrent hepatitis C in liver
disodium salt
transplant recipients
Силибинин-C-2',3-дихидрогенсуксинат,
Превенция на рекурентен Хепатит С при
двунатриева сол
пациенти, получили чернодробни
Bulgarian
транспланти Czech Danish Dutch Estonian Finnish French German
Disodná sůl silibinin-C-2',3-
Léčba pravostranného srdečního selhání
dihydrogensukcinátu
po kardiotomii
Silibinin-C-2',3-dihydrogensuccinat,
Forebyggelse af tilbagevendende hepatitis
dinatriumsalt
C i levertransplantatmodtagere
Silibinine-C-2',3-diwaterstofsuccinaat,
Preventie van recurrente hepatitis C in
dinatriumzout
levertransplantrecipiënten
Silibiniin-C-2',3-divesiniksuktsinaadi
Retsidiivse C-hepatiidi ärahoidmine
dinaatriumsool
maksatransplantaadi retsipientidel.
Silibiniini-C-2',3-divetysukkinaatti,
Toistuvan hepatiitti C:n esto
dinatriumsuola
maksansiirtojen vastaanottajissa
Silibiline-C-2',3-dihydroxysuccinate, sel
Prévention des recurrences de l'hépatite
disodique
virale C chez les transplantés hépatiques
Dinatrium(silibinin-C-2',3-disuccinat)
Prävention rezidivierender Hepatitis CInfektionen bei Lebertransplantatempfängern
Greek Hungarian Italian Latvian Lithuanian
Σιλιβινίνη-C-2',3-δισόξινη ηλεκτρική,
Πρόληψη ηποτροπιάζουσας Ηπατίτιδας C σε
δινάτριο άλας
λήπτες μοσχεύματος ήπατος
Szilibinin-C-2',3-dihidrogén-szukcinát
Májtranszplantációt követő visszatérő
dinátrium sója
Hepatitis –C megelőzése
Silibinina-C-2',3-diidrogenosuccinato, sale
Prevenzione delle recidive dell’epatite C in
disodico
pazienti sottoposti a trapianto di fegato
Silibinīna-C-2',3-dihidrogēnsukcināta
C hepatīta recidīva profilakse aknu
dinātrija sāls
transplantāta recipientiem
Silibinino-C-2',3-dihidrogensukcinatas,
Pakartotinio hepatito C viruso kepenyse
dinatrio druska
prevencija, kepenų transplanto recipientams
Maltese Polish
Silibinin-C-2',3-dihydrogensuccinate,
Prevenzjoni tal-epatite tat-tip Ċ rikorrenti
disodium salt
f’pazjenti li kellhom trapjant tal-fwied
Sylibino-C-2',3-dwuwodorobursztynian, sól
Zapobieganie nawracającemu zapaleniu
dwusodowa
wątroby typu C u biorców przeszczepu wątroby
Portuguese Romanian Slovak
1
Silibinina-C-2',3-di-hidrogenossucinato, sal
Prevenção da hepatite C recorrente em
dissódico
receptores de transplante hepático
Silibină-C-2',3-dihidrogen succinat, sare
Profilaxia hepatitei C recurente la pacienţii
disodică
cu transplant hepatic
Dvojsodná soľ silibinín-C-2',3-
Prevencia rekurentnej hepatitídy C u
dihydrogénsukcinátu
pacientov po transplantácii pečene
At the time of designation
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Slovenian Spanish Swedish Norwegian Icelandic
Silibinin-C-2',3-dihidrogensukcinat,
Preprečevanje rekurentnega hepatitisa C
dinatrijeva sol
pri bolnikih z jetrnim poresadkom
Silibinina-C-2',3-dihidrógeno-succinato, sal
Prevención de la recurrencia de la hepatitis
disódica
C en recipientes de transplante de hígado
Silibinin-C-2',3-divätesuccinat,
Profylax av återkommande hepatit C hos
dinatriumsalt
levertransplantat mottagare
Silibinin-C-2',3-dihydrogensuksinat,
Forebygging av hepatitt C residiv hos
dinatriumsalt
mottagere av levertransplantat
Silibinin-C-2',3-tvíhýdrógen súkkínat,
Fyrirbyggjandi gegn endurvakinni
tvínatríum salt
lifrarbólgu C lifrarsjúkdómi hjá lifrarígræðsluþegum
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